Three things make the biggest difference. First, match the absorbency to your actual flow that day, a light tampon won't cut it on a heavy day, and a super on a light day can dry you out. Second, insert a fresh one right before you get in the water, not an hour earlier. Third, change it as soon as you're out and dried off. A wet tampon may hold less effectively once out of the water. Rael's Organic Cotton Tampons come in light, regular, and super if you want a compact applicator option across sizes. For extra confidence on heavier days, layer with period swimwear. And always check that the string is tucked.